The basics A protective, humidity-resistant styling spray, RUSK® Thermal Flat Iron Spray penetrates hair, infusing conditioning and controlling agents like argan oil and Thermplex™ to seal the cuticle, eliminate frizz, prevent curl reversion, and protect styles from environmental elements.  The benefits Conditions and protects the hair internally and externally while smoothing and enhancing shine. The uses Provides long-term memory, helping prevent curl reversion and making styles resistant to environmental elements. Conditions and protects the hair internally and externally while imparting smoothing and shine-enhancing benefits. The bottom line Thermal liquids condition and protect the hair internally and externally. Exclusive Thermplex™ heat protection leaves the hair smooth, silky soft, sleek and shiny.